A novel slotted dumbbell-shaped dielectric resonator antenna with enhanced bandwidth for C-band and 5G sub-6 GHz applications

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Frequenz Pub Date : 2023-10-31 DOI:10.1515/freq-2023-0014

Ravi Chandra, Dileep Kumar Upadhyay

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引用次数: 0

Abstract

Abstract This manuscript presents a novel aperture-coupled fed slotted dumbbell-shaped (SDS) dielectric resonator antenna (DRA) with enhanced bandwidth for 5G sub-6 GHz, short-range wireless communications, and C-band applications. The DRA is excited by HEM 11 δ mode. The proposed SDS-DRA is designed by assembling the four frustums of conical DRAs with the base and apex of one on top of another. The measured operating frequency of SDS-DRA is from 3.5 GHz to 9.6 GHz (impedance bandwidth of 93.1 %). The SDS-DRA shows a peak gain of 9.7 dBi in the operational frequency range, with an average peak gain of 6.02 dBi. The antenna’s average radiation efficiency is found to be 84.6 %. The proposed SDS-DRA produces omnidirectional-like radiation patterns with significantly low cross-polarization in the broadside direction. The size ( l × w × h ) of the proposed SDS-DRA is 1.55 λ g × 1.55 λ g × 0.67 λ g where, λ g is the guided wavelength in mm at 3.5 GHz for effective permittivity ( ϵ eff ), 7.1. To validate the simulation results, the proposed antenna structure is built, and its performance is measured. The findings of simulation and measurement results are found to be quite congruent.

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一种新型开槽哑铃形介质谐振器天线，具有增强带宽，适用于c波段和5G sub- 6ghz应用

摘要:本文提出了一种新型的孔径耦合馈电开槽哑铃形(SDS)介质谐振器天线(DRA)，该天线具有增强带宽，适用于5G sub-6 GHz、短距离无线通信和c波段应用。DRA由hem11 δ模式激发。所提出的SDS-DRA是由四个锥形dra的锥台组合而成的，每个锥台的底部和顶点都在另一个的顶部。SDS-DRA的工作频率测量范围为3.5 GHz ~ 9.6 GHz(阻抗带宽为93.1%)。SDS-DRA在工作频率范围内的峰值增益为9.7 dBi，平均峰值增益为6.02 dBi。该天线的平均辐射效率为84.6%。所提出的SDS-DRA在宽方向上产生具有明显低交叉极化的全向辐射模式。SDS-DRA的尺寸(l × w × h)为1.55 λ g × 1.55 λ g × 0.67 λ g，其中λ g为3.5 GHz时有效介电常数(λ eff)为7.1的导波波长，单位为mm。为了验证仿真结果，建立了该天线结构，并对其性能进行了测试。仿真结果与实测结果相当吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.